I really want to do the martial arts again, but I can't find a way to attend a local dojo. I am 15, and cannot drive. My mother works the graveyard shift so she must be to bed early and most classes are later at nite (6,7,8 o clock even). I really want to go and learn again can someone please help me?

Don't know your situation or where you live, but at your age I took judo at a local Boys/Girls club. Took the bus back and forth. If you choose that path I do suggest that you carry your gi in a bag and change at the dojo though. Wearing it in public can start confrontations.